Headphones aren't recognized

My phone does not recognize headphones. Every time I plug them in, he audio continues through the phone's speaker. My phone is rooted and I am running CM9. I have not seen this issue in any CM9 threads. I posted this issue in a CM9 thread, but no one has responded with the same issue or a fix so I am posting here in hopes that someone has experienced this issue and was able to resolve it. Thanks in advance for any help with this problem.